For a lighter version, grill the chicken instead of searing it in oil, and cut the dressing's olive oil by a third. For extra protein, add a soft-boiled egg on top or swap chicken for grilled shrimp. For gluten-free, use gluten-free bread for the croutons or skip them and add extra parmesan for crunch instead. For a lighter dressing without raw egg, use the mayonnaise swap mentioned in the FAQ. Serve with garlic bread on the side, or make it a full meal by pairing with a cup of tomato soup. For a crowd, this scales easily, just double the chicken and dressing and toss the romaine in batches so it doesn't wilt from overcrowding.

Store the components separately if you're planning ahead, this salad doesn't hold well once fully assembled. Dressed romaine goes limp within an hour or two. The dressing keeps in an airtight jar in the fridge for up to 4 days. Give it a good shake or whisk before using, it separates slightly as it sits. Cooked chicken keeps for 3-4 days refrigerated in a sealed container. Slice it cold or give it a quick reheat in a skillet over medium heat for a couple minutes per side, just enough to take the chill off without drying it out. Keep croutons in a separate container at room temperature. They go soft fast if stored anywhere near moisture.

Two techniques decide whether this salad turns out right: searing the chicken and emulsifying the dressing. For the chicken, a hot pan and patience matter more than any seasoning trick. Let the pan get properly hot before the chicken goes in, you should hear an immediate sizzle. Then leave it alone. Moving it too early tears the crust that's trying to form and you lose that texture entirely. For the dressing, the oil has to go in slowly, in a thin stream, while you whisk without stopping. This is what turns raw egg yolk, garlic, and lemon into something thick and creamy instead of a separated, oily mess. If you have an immersion blender, it makes this step nearly foolproof, just add the oil gradually while blending on low.